this is "world news." tonight -- breaking news. terror on the track. a dramatic accident in the last seconds of a race at daytona. cars crashing into the fence. parts flying over it. fans among the injured. the vatican backlash. the church lashing out over what it calls false reports. that the pope resigned because she was trying to avoid scandal. who they're angry with, our correspondent in rome tonight. plus, an abc news exclusive. david muir inside iran. on the eve of those crucial nuclear talks, involving iran. and u.s. iran with a new bold announcement about future nuclear attacks. plus, rare access to the streets of iran. and hearing from the young people, what would

they say to president obama. and the footloose first lady. why michelle obama is going viral tonight. and good evening. i'm dan harris. we'll get to david muir in iran in just a moment. but we're going to start tonight with the breaking news out of florida. a treacherous finale to a race at the daytona international speedway. cars colliding, getting tossed around like toys. pieces of cars flying over a fence, injuring at least a dozen people, many of them fans. abc's linzie janis on the story. >> reporter: one driver sparked a dramatic crash on the daytona track. >> and contact! and a terrible crash coming to finish. >> reporter: sending his car spinning into the wall and

another going airborne. parts of the 12 cars involved in the crash, slide through the fence, into the stands, hitting and injuring spectators. so far, 15 people have been taken to the hospital. the drivers are all okay. now, take a look again. the driver out front is regan smith, he tries to prevent his opponent, the car directly behind him, from trying to break out in front. triggering the giant crash, sending the car of kyle larson into the air, ripping its engine off. this cell phone video shows shards of metal hurtling towards the screaming fans. >> i made the move. started the chain of events that caused that wreck. >> i hope everyone is in the stands is okay. >> they started wrecking in front of us. from that point it was too late. you're running so fast. >> reporter: it's a dark day for nascar when fans get injured. tomorrow is the big race, the daytona 500, many of those same drivers will be competing again in just a few hours. dan? >> back to this crash, one car

triggered the whole thing. >> that's right. the car out in front, tries to block his opponent immediately behind him from getting out in front of him. that sparked the big crash. you can see the car that goes airborne, kyle larson, its engine got completely ripped off, that went into the stands. you can see it burning there. it wedged itself in a hole in the fence. this is why we have some very serious injuries, six of these patients will be trauma patients. >> linzie, lot of people will want to know about danica patrick, she'll be starting in pole position, was she involved here. >> she was not involved. she actually had to bow out of the race earlier on because of some engine troubles. >> there will be a lot of people relieved to that. we head overseas to another developing story out of rome. vatican taking aim at those

unconfirmed reports that the spoep resigning before a scandal. abc's david wright is in vatican city for us tonight. >> reporter: good evening. tonight, the vatican used the strongest possible language to condemn the news coverage. saying it needs to defend the freedom of the college of cardinals to elect the next pope. the official communique from the holy see made the vatican press corps seem like people trying to rig an election. cardinals have faced many kinds of pressure to bend their decisions to a political end. >> today, there's an attempt to do this through public opinion. >> reporter: they have been railing for days about italian news reports claiming they know the contents of a classified internal investigation that the pope received in december. they say the real reason that benedict resigned was because the three investigating kartd

analysis uncovered far more salacious comments. church officials steered the conversation away from the sexual abuse scandal. today in los angeles, cardinal roger mahony testified under oath about allegations that he actively con sealed the crimes. one was accused of molesting 26 boys in 1987, he fled to mexico after mahony's top aide warned him that he -- police would investigate. the idea that cardinal mahony should help choose the next pope say says it's an outrage. >> it's absolutely mind-boggling to me how this continues to go on and mahony should be jailed. >> reporter: but the vatican says that voting in the conclave is a sacred duty, despite any worldly scandals. >> i don't think many of the

cardinals in rome are very concerned about mahony voting because they consider him part of the fraternity. >> reporter: he blogged this week about feeling like a scapegoat, as he put it, suffering painful and public humiliation just like jesus. david wright, abc news, rome. >> the pope's resignation coming up on thursday. now, we head to south africa and another unfolding story. olympic runner oscar pistorius out of jail tonight and the family of the woman he's accused of murdering, speaking out about their heartbreak tonight. abc's bazi kanani, in pretoria once again. >> reporter: oscar pistorius spent his first day out of jail at his uncle's three-storied home in a quiet well-to-do suburb with strict bail conditions. no guns, no alcohol. no passports to leave the country.

no returning to his home, which is now a crime scene, and twice a week appointments at a police station. fans cheered outside a courtroom friday. when south africa's most famous athlete was released on bail. after his arrest in the shooting death of his girlfriend, reeva steenkamp. as he stays inside his uncle's home, away from the media spotlight today, the victim's family is beginning to share more of their feelings. steenkamp's uncle expressed frustration with the celebrations after oscar pistorius' release. questioning why everyone wants to jump up with joy. just today before south africa aired its first interview with steenkamp's parents, a glimpse of the family's anguish. reeva's mother, june, revealing in an interview, with a local newspaper that the pistorius family sent flowers after reeva died. what does it all mean, she asked. nothing. the olympian allegedly shot four

times through the bathroom. after an argument. pistorius said that he mistook her for an intruder. steenkamp's father said today, if the way he said it happened is true, i will be able to forgive him one day. if it's not like that, he should suffer. he's the one with who will have to live with his conscience. bazi kanani, abc news, pretoria, south africa. and now to iran, a country that made a bold announcement with just days to go before critical nuclear talks, iran said it found significant new deposits of raw uranium. with usa team on the way to those negotiations the state department say iing they still believe there's still a diplomatic solution to have.

david muir is inside that secretive country in a crucial time. david? >> reporter: dan, good evening. the iranians we talked with, said, they hoped for a break in the impasse. hopefully, the young people. and what they would say to president obama. iranian government allowing us into tehran. just three days now until those crucial talks. as we explored the city all this week, we have been struck by the young voices here, walking past a school, we noticed that the students are speaking english, we entered the schoolyard where they take lessons, this mother told us, her son will need english when she grew up. but we wondered if she thinks it would be any different. do you hope for your son a better relationship between iran and america? she tells me "god willing, that will happen." as classes let out, they swarm our cameras. they have never met a reporter from america. do you think iran and america will get along? >> maybe. >> maybe. >> maybe.

>> reporter: do you hope for it? >>es. >> yes. >> reporter: how would you describe america in one word? >> very good country. >> reporter: very good country. >> powerful. >> reporter: powerful. they're young, but this boy is not naive. he tells me that he's aware of the economic sanctions. led by the u.s. >> under pressure of -- >> reporter: you're feeling the economic pressure? >> yes. >> reporter: and it's not just the young boys here who shared their opinions, as we traveled through the markets there was this mother who turned to her daughter to speak for both of them. >> the pressure is on the people. >> reporter: the people of iran? the families of iran. >> yeah. >> reporter: when we heard "welcome to iran" too many times to count. we could hear the music through his headphones. enrique iglesias here in iran.

which brings us back to that school that had so many questions for me. do i see "american idol"? have you seen american idol? >> yes. >> reporter: who's your favorite contestant on "american idol"? >> jennifer lopez. >> reporter: she's a judge. amidst the laughter, they know that our countries haven't gotten along. what would you say to president obama? >> be friendly with iran. >> reporter: and from the father waiting to pick up his son, a different view. all of these young boys want iran to be friends with america one day, does that surprise you? >> no, it doesn't. >> reporter: you don't? do you think it's a generational difference? >> yes, yes. >> reporter: which is likely why it was only the children who asked for pictures as we left. abc is blocked on the internet here. thank you, guys. thank you. have a good night.

and we traveled the world, no surprise it's often the children with the most optimistic view. early next week, there will be six nations at one table and the children here that we met waiting to see if there will be any chance for a different future for them. >> david muir with more extraordinary reporting from inside iran tonight. now back to home after that aftermath from the massive storm in the midwest. kansas is digging out tonight. too much for this roof in kansas city to handle. in gladstone, missouri, the roof of this dance school also fell in and now, as we say, more snow on the way. for that, we turn to abc good evening to you. >> this storm is revving up. parts of colorado, east of denver have blizzard warnings tonight. watch as this things drops south and east. it will hit parts of northern texas. that little panhandle area. through oklahoma. the area hardest hit last week,

parts of wichitas, topeka, kansas city, could get up a foot again. lot of people talking about the storm on the east coast. i want to show you this, the storm is pretty benign. boston one inch and four to eight in portland. >> let me ask you about the forecast for tomorrow's oscars. >> morning, 50s. about 71. >> light breeze. not a big problem for the gown. >> reporter: not at all. >> ginger zee, thank you. another major sports headline to talk about tonight, we witnessed the re-emergence of manti te'o, he held a packed news conference in the middle of a major nfl tryout event that are going on in indianapolis.

he said that he's over the embarrassment and ready to play. he answered the question, does he have a real girlfriend now? >> reporter: stepping back into the spotlight today at an nfl draft event, manti te'o was mobbed by hundreds of reporters. >> that's pretty crazy. i have been -- i have been in front of a few cameras. but, not as many as this. >> reporter: the former notre dame linebacker in indianapolis to showcase his athleticism in front of potential nfl employers, was instead forced to answer questions about a girlfriend that never existed. >> it was just a whirlwind of stuff. it was chaos for a little bit. you let the chaos die down. >> reporter: it was his first time facing the press since his first exclusive sit-down interview with katie couric last month. it was anything but intimate or organized. >> are you dating anybody right now. >> no, not right now. >> reporter: he does not have a girlfriend right now. as for his future, no indication that the hoax will hurt his prospect for drafting.

many experts predict that he'll be picked in the first round. dan, that could mean millions of dollars. >> he'll be selected in the first round despite all of this. and coming up here on "world news" on this saturday night -- we all remember the amazing shots of that meteorite in russia. on dash cams. but tonight, what else those dash cams are capturing. this is $100,000. we asked total strangers to watch it for us. thank you so much. i appreciate it. i'll be right back. they didn't take a dime. how much in fees does your bank take to watch your money? if your bank takes more money than a stranger, you need an ally. ally bank. your money needs an ally.

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one week ago, we brought you that amazing video of that meteorite in russia. which you can see behind me tonight. the pictures are from a dash cam. nearly every car in russia has one of these things, and tonight, check out what else these cameras are capturing. here's abc's kirit radia. >> reporter: not every day that you catch a falling star, like this massive meteor streaking across the sky last week. these are the latest images from that near catastrophe. in russia, you would be surprised what you can catch on tape. crazy scenes on russia's reckless roads. recorded on dash cams that are exploding in popularity in russia. they're used for insurance reasons, but the madness they capture is going viral on youtube. the cringe-worthy crashes. the death-defying smashes and the truly bizarre.

real-life road warriors, from helicopters. to tanks. from roadside fighting. to fighter jets. this camera even caught a plane crash. cameras aren't just creating youtube gold. they actually serve an important purpose, like trying to figure out who's at fault in an accident. the cameras also catch crooked cops and insurance scams. like this man who may have been trying to be hit by a car. we took one for a test drive with the editor-in-chief of a russian magazine. how do i explain these videos to americans? >> what you see is becoming more popular. >> reporter: he said that these dash cameras are shaming drivers into better behavior.

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michelle obama is extremely popular on the internet tonight, after a dance performance that is a long way from the formality and reserve of past first ladies. here's david kerley. >> reporter: the first lady has gone viral. mrs. obama joined a dressed-in-drag jimmy fallon for what he called the evolution of mom dancing. yes, go shopping, get groceries, raising the roof, even a bit of hip bumping. come comedy, but the first lady has a reason to bust a move. time has changed from the reserve shown by jackie o. first ladies have room to move. the first lady is dancing to promote her battle against childhood obesity, called let's move. >> things like go outside, throw a ball, doing a little dancing,

you can really make some significant improvements with small changes. >> reporter: after dancing with the first lady, fallon, learned mrs. obama has a quick wit. >> i said it here first, dream team michelle and hillary '16. what do you think? >> you know, i have my eye actually on another job. and i hear that when jay leno retires -- >> reporter: but even fallon knows when to call it quits, as the first lady does the dougie. david kerley, abc news, washington. >> michelle obama is a far cry from sarah polk who was the first lady in 1940s. in 1840s banned all dancing at the white house. that's "world news" for this saturday. thank you for watching and good night.